City | Rank | County | 2024 Pop. |
|---|---|---|---|
| North Eagle Butte | 1 | Dewey County | 1,618 |
| Eagle Butte | 2 | Dewey County | 1,220 |
| Lemmon | 3 | Perkins County | 1,154 |
| McLaughlin | 4 | Sioux County | 543 |
| Timber Lake | 5 | Dewey County | 517 |
| Dupree | 6 | Ziebach County | 471 |
| Buffalo | 7 | Harding County | 359 |
| Faith | 8 | Meade County | 352 |
| Little Eagle | 9 | Corson County | 347 |
| Bison | 10 | Perkins County | 303 |
| Bullhead | 11 | Corson County | 234 |
| Whitehorse | 12 | Dewey County | 148 |
| Isabel | 13 | Dewey County | 145 |
| McIntosh | 14 | Grant County | 109 |
| Camp Crook | 15 | Harding County | 65 |
| Lantry | 16 | Dewey County | 46 |
| Morristown | 17 | Corson County | 44 |
| Prairie City | 18 | Perkins County | 26 |